On earth, the equator receives more sunshine than do the poles. This is due to simple geometry of the earth’s curvature, a given amount of sunshine in a beam falling on the equator, which points directly at the sun, has a much more intense effect than the glancing rays spread over a much larger area […]
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Women lose bone mass more rapidly than men? – spice4life Who’s most at risk for deficiency? People who have limited sun exposure or people who have dark skin in areas with weaker sunlight are also at risk since their skin exposure may not be adequate to make enough vitamin D. Breastfed infants are most at risk for […]
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Shades of Difference addresses the widespread but little studied phenomenon of colorism—the preference for lighter skin and the ranking of individual worth according to skin tone. Examining the social and cultural significance of skin color in a broad range of societies and historical periods, this insightful collection looks at how skin color affects people’s opportunities in Latin America, […]
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According to researchers, this particular ancient man had a combination of African and European genes that led to dark skin and light eyes. Surprise! Ancient European had dark skin and blue eyes … Sunlight changes Many scientists have believed that lighter skin gradually arose in Europeans starting around 40,000 years ago, soon after people left […]
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